twin language

Shared secret speech

Twin language is a form of communication developed between twins, especially young children, that may be unintelligible to others.

These private languages—also called cryptophasia or idioglossia—often emerge when twins spend extensive time together and can include invented words, unusual pronunciations, or grammatical patterns unique to the pair.

Most twin languages fade as children develop standard speech: The twins had their own language until they started school.

Related

gibberish · fraternal · identical · nursery · early childhood · playmate · telepathy · understood · mimicry · bonding · developmental · nonsense words · exclusive · intimacy · crib · parallel play · synchronized · womb

Opposites
linguistic legitimacy

twin languagenatural language

Human communication, not programming

standard language · official language · national language · lingua franca · pidgin

speaker population scope

twin languageuniversal language

Speech all understand

world language · common language · public discourse · lingua franca · global English

developmental trajectory

twin languagemother tongue

Language acquired from birth

native language · heritage language · ancestral language · classical language · dead language

Family

twin, twins, twinned, twinning, twain, language, languages, lingual, linguistic

Familiarity
Top 500,000
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Used worldwide · Timeless · Rated G